I Am Allergic To Certain Foods. I Got This Problem

I am allergic to certain foods. I got this problem almost 3 years back. I am on homeopathy and it was helping. But 2 months back I started getting some kind of pain on the right side chest. And after wating anything after sometime I would start itching. The doctor advised Pantocid 40 twice a day for 10 days. But it did not help. Ye gave Cyclomenol for 2 days but no use. I went to another doctor. He gave Esogress early morning empty stomach and Moza 2.5 mg before lunch and dinner. With this the chest pain did go down but itching was still there. After 10 days I stopped the medicine and for two days there was no itching but slight pain in the chest was there. The doctor has given Esogress 40 before lunch. I do not know how to solve the itching problem. Have started Liv 52 also, liver supplement. 2 hours after I eat anything the itching starts. I take some digestive pill made from camphor and carom seeds etc. And that helps. But how do i do away with all this?